THE INFLUENCE OF TiO2 NANOPARTICLES ON THE MECHANICAL PROPERTIES AND MICROSTRUCTURE OF AA2024 ALUMINIUM ALLOY

被引：2

作者：

Mahan, Hamid M. ^{[1
,3
]}

V. Konovalov, Sergey ^{[2
]}

Osintsev, Kirill ^{[1
]}

Panchenko, Irina ^{[1
,2
]}

机构：

[1] Samara Natl Res Univ, Samara, Russia

[2] Siberian State Ind Univ, Siberian, Russia

[3] Middle Tech Univ, Tech Inst Baquba, Baghdad, Iraq

来源：

MATERIALI IN TEHNOLOGIJE | 2023年 / 57卷 / 04期

关键词：

metal-matrix composites; nanoparticles; aluminum matrix; aging; MATRIX COMPOSITES; STRENGTH;

D O I：

10.17222/mit.2023.898

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study aluminum alloy 2024 was reinforced with different mass fractions (0 w/%, 2.5 w/%, 5 w/%, and 7.5 w/%) of tita-nium dioxide nanoparticles using the stir-casting method. The main objective was to study an effect of an addition of TiO2 nanoparticles on the microstructure and the mechanical properties of the 2024 aluminum alloy composite fabricated by stir cast-ing. Scanning electron microscopy, energy-dispersive analysis, as well as X-ray diffraction analysis were implemented to char-acterize the microstructure, elemental and phase composition of the samples. The tensile and Vickers hardness tests were carried out to evaluate the mechanical properties. The results showed that the addition of 7.5 w/% TiO2 nanoparticles increases the ulti-mate tensile strength by 37 % and elongation by 71 % while decreases the hardness by 14 % comparing with the initial alloy. The highest hardness was demonstrated in the alloy with 5 w/% TiO2.

引用

页码：379 / 384

页数：6

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